A 70-year-old man complains of progressive proximal muscle weakness without significant pain. Elevated creatine kinase (CK) levels. Suspected polymyos...

Question

A 70-year-old man complains of progressive proximal muscle weakness without significant pain. Elevated creatine kinase (CK) levels. Suspected polymyositis. According to NICE, which investigation can help confirm the diagnosis?

Accepted Answer

Muscle biopsy

Answer

Rheumatoid factor

Answer

Bone scan

Answer

Electromyography (EMG)

Answer

Serum complement levels

NICE Polymyositis and Dermatomyositis Guidance MCQ (SBA): Polymyositis

A 70-year-old man complains of progressive proximal muscle weakness without significant pain. Elevated creatine kinase (CK) levels. Suspected polymyositis. According to NICE, which investigation can help confirm the diagnosis?